【正文】 y, highspeed machining equipment can not fully play its role. In highspeed machining, should be chosen with milling, when the milling cutter involvement with the workpiece chip thickness as the greatest, and then gradually decreased. Highspeedmachining suitable for shallow depth of cut, cutting depth of not more than mm, to avoid the location of deviation tool to ensure that the geometric precision machining parts. Ensure that the workpiece on the cutting constant load, to get good processing quality. Cutting a single highspeed milling pathcutting mode, try not to interrupt the process and cutting tool path, reducing the involvement tool to cut the number to be relatively stable cutting process. Tool to reduce the rapid change to, in other words when the NC machine tools must cease immediately, or Jiangsu, and then implement the next step. As the machine tool acceleration restrictions, easy to cause a waste of time, and exigency stop or radical move would damage the surface accuracy. In the mold of highspeed finishing, in each Cut, cut to the workpiece, the feed should try to change the direction of a curve or arc adapter, avoid a straight line adapter to maintain the smooth process of cutting. 3 Die in highspeed milling processing of Milling as a highly efficient highspeed cutting of the new method,in Mould Manufacturing has been widely used. Fing links in the regular production model, with EDM cavity to be 12 ~ 15 h, electrodes produced 2 h. Milling after the switch to highspeed, highspeed milling cutter on the hardness of HRC 6 0 hardened tool steel processing. The fing die processing only 3 h20min, improve work efficiency four to five times the processing surface roughness of ~ , fully in line with quality requirements. Highspeed cutting technology is cutting technology one of the major developments, mainly used in automobile industry and die industry, particularly in the processing plex surface, the workpiece itself or knives rigid requirements of the higher processing areas, is a range of advanced processing technology The integration, high efficiency and high quality for the people respected. It not only involves highspeed processing technology, but also including highspeed processing machine tools, numerical control system, highspeed cutting tools and CAD / CAM technology. Dieprocessing technology has been developed in the mold of the manufacturing sector in general, and in my application and the application of the standards have yet to be improved, because of its traditional processing with unparalleled advantages, the future will continue to be an inevitable development of processing technology Direction. 高速銑削 高速切削加工是一種先進(jìn)制造技術(shù)，不同于傳統(tǒng)加工方式。雖然電火花可加工硬度很高的工件，但較低的生產(chǎn)率使它的應(yīng)用受到制。在常規(guī)切削加工中備受困擾的一系列問題，通過高速切削加工的應(yīng)用得到了解決。高速銑削可獲得無銑痕的加工表面，使零件表面質(zhì)量大大 提高。 有利于加工薄壁零件 高速切削時的切削力小，有較高的穩(wěn)定性，可加工高質(zhì)量同本公司內(nèi)部員工相比可能是非常優(yōu)秀的，但是同其他的 公司的員工相比工作績效可能算不了優(yōu)秀。通過對企業(yè)內(nèi)外部環(huán)境和組織資源等分析，明確企業(yè)未來發(fā)展的目標(biāo)和業(yè)務(wù)重點。所以在一定的時期內(nèi)，企業(yè)要準(zhǔn)確地選定其跟標(biāo)桿企業(yè)比較的部門和崗位，這樣更加具有實際意義，因為標(biāo)桿企業(yè)并不是處處都好，而且有些方面進(jìn)行比較沒有多少實際意義，再者這樣可以更充分地集中利用企業(yè)的有限資源。 可部分替代某些工藝，如電火花加工、磨削加工 高速切削的一大特點，高速切削已可加工硬度達(dá) HRC60 的零件。后者不僅具有普通機(jī)床的加工能力，而且還可進(jìn)行高速銑削，減少了設(shè)備投資，增加了機(jī)床柔性。 高速銑削加工機(jī)床為了實現(xiàn)高速切削加工 一般采用高柔性的高速數(shù)控機(jī)床、加工中心，也有的采用專用的高速銑、鉆床。主軸的軸向間隙不大于 0 .0 0 0 2 m m 。為了獲得良好的加工質(zhì)量，高速切削機(jī)床必須具有足夠高的剛度。目前高速機(jī) 床的廠家，通常在普通機(jī)床上進(jìn)行低速、大進(jìn)給的粗加工，然后進(jìn)行熱處理，最后在高速機(jī)床上進(jìn)行半精加工和精加工，在提高精度和效率的同時盡可能地降低加工成本。立方氮化硼具有很高的硬度、極強的耐磨性和良好的導(dǎo)熱性，與鐵族元素之間有很大的惰性，在 1300℃ 也不會發(fā)生顯著的化學(xué)作用，還具有良好的穩(wěn)定性。采用刀具涂層技術(shù)，可以提高刀具硬度和切削加工的速度 ，適合切削硬度在 HRC40～ 50 之間的工件。切削方法選擇不當(dāng)，會使刀具加劇磨損，達(dá)不到高速加工的目的。保證工件上的切削載荷恒定，以獲得好的加工質(zhì)量。在模具的高速精加工中，在每次切入、切出工件時，進(jìn)給方向的改變應(yīng)盡量采用圓弧或曲線轉(zhuǎn)接，避免采用直線轉(zhuǎn)接，以保持切削過程的平穩(wěn)性。整個鍛模加工只需3h20min，工效提高 4～ 5 倍，加工表面粗糙度達(dá) ～ ，質(zhì)量完全符合要求。